Dude was drafted 2nd overall, regarded as a "can't-miss" prospect, and someone that was supposed to be the next Gale Sayers. Does he have a better NFL career than most? Yes, but his production has been that of a 4th round pick. Punt returners and 3rd down backs shouldn't be drafted 2nd overall.
For his draft position and the money invested, yes, he is a bust.